Home / 49,777.20-74,704.68-18,621.36

Finding the Fourth Proportional to 49,777.20, 74,704.68 and 18,621.36

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Solution

The fourth proportional to 49,777.20, 74,704.68 and 18,621.36 is: 27,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,777.20 : 74,704.68 = 18,621.36 : x
  2. Step 2: Convert to fraction form
    49,777.20/74,704.68 = 18,621.36/x
  3. Step 3: Cross multiply
    49,777.20x = 74,704.68 × 18,621.36
  4. Step 4: Simplify right side
    49,777.20x = 1,391,102,739.96
  5. Step 5: Solve for x
    x = 1,391,102,739.96/49,777.20
  6. Step 6: Final answer
    x = 27,946.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.